baber/WOPTO huggingface dataset:
Patent GB-299401-A (GB)
Title: Improvements in tube connectors
Filed: 1927-04-25
Abstract: 299,401. Robertson, T. E., (Power Specialty Co.). April 25, 1927. Bends.-A return bend A for parallel tubes D, D is provided with hand holes E opposite both of the tube openings C, and said holes E are normally adapted to be closed by a plug F having its inner ends shaped to approximate a smooth extension of the curved outer wall of the tube connecting passage B. The plug is provided with an intermediate conical portion F<2> which coacts with a conical seat E<2> in the opening E, while it is retained in place by a securing member G having diametrically opposed extensions G' which engage lugs A' projecting laterally into the outer end of the said opening. Final adjustment of the plug is obtained by a screw H which is threaded through the securing member G and bears thereon, while to ensure proper angular disposition of the plug it is provided with a finger f<1> which is engaged with a recess E<5> in the opening E. Modified constructions for securing the plug F in position are described.
Patent GB-595377-A (GB)
Title: Improvements in machines for scutching, decorticating and softening fibrous materials such as flax, hemp, jute and ramie
IPC: D01B1/22
Filed: 1945-05-02
Abstract: 595,377. Decorticating-machines. LINEN INDUSTRY RESEARCH ASSOCIATION, and HILL, R. M. May 2, 1945, No. 11086. [Class 120 (i)] Relates to machines for scutching flax and decorticating hemp &c. of the type in which one end of the material is freely suspended whilst being scutched by rotating blades, and the material is conveyed by gripper belt or similar means through two separate sections of scutching blades which act on the root end and top end of the straw respectively. According to the invention the material, before being subjected to the action of the high speed scutching blades of each section, is subjected to a forming and softening action by a short length of lower-speed blades. As shown, in each section of blades, the material is traversed along the short low-speed portion J and then along the longer high-speed portion K. Blades G of portion K are mounted on shaft A which is driven at the end not shown. Blades G<1> of portion J are mounted on a sleeve Q freely rotating on shaft A and driven therefrom by a reduction gear train W, P', p<2>, U, gears P<1> and p<2> being carried on a sleeve P mounted on a stud L fixed to the machine frame member C. Gear wheel B fixed to shaft A transmits motion to a parallel shaft carrying blades similar to and coacting with blades G<1>. G. Alternatively blades G, G<1> may co-act with a fixed concave surface. The preliminary forming blades G<1> may be arranged as a short section mounted on a separate shaft from blades G, they may be arranged parallel to the shaft or may be coned, they may be of different material from blades G, and different in number therefrom.
Patent GB-1357716-A (GB)
Title: Nut gauging machine
IPC: B07C5/06
Filed: 1973-03-07
Abstract: 1357716 Gauging and sorting screw nuts FEDERAL SCREW WORKS 7 March 1973 [16 March 1972] 11121/73 Heading G1M Nuts are fed from a vibratory hopper 16 to a delivery station 20 having nut holding springs at its end and where probes 14 supported in a rotatable carrier 12 are lifted in turn by a circular vibratory cam rail (70) Fig.3 (not shown) so that their end portions 36, Fig. 5, pass into the screw holes of the nuts and carry the nuts around to delivery stations 22, 24 situated at different height levels. If the nut hole is of an acceptable diameter then the nut sits on top of its probe and is carried into the chute 22 which has a slot in its bottom to take the probe. When the probe is lowered by the cam rail the nut is deposited in the chute 22. If the nut hole is too large then the nut falls down the shank of the probe to the surface of the carrier 12 and is carried around at a lower height to a reject chute 24. Different diameter probes may be used if the machine is to sort nuts with too small holes.
Patent GB-708589-A (GB)
Title: Attenuators for high frequency transmission lines
IPC: H01Q13/26
Filed: 1952-05-02
Abstract: 708,589. Attenuators for high frequency transmission lines. STANDARD TELEPHONES & CABLES, Ltd. May 2, 1952 [May 31, 1951], No. 11147/52. Addition to 704,050. Class 40 (8) A microwave transmission line as described in the parent Specification is provided with an attenuator consisting of a body of lossy material arranged to form part of the electromagnetic circuit of the transmission system. The body may consist of resistive material or be a dielectric and may, in the former case, consist of a section of one of the line conductors. When the line conductors 1a and 2 are formed on each side of an insulating layer 10 by printing circuit methods, the attenuator may consist of a layer 9 formed on conductor 1a. The ends of the attenuator portion may be tapered for matching purposes. In an adjustable construction the attenuator body 13 is pivoted at 14 so that it can swing between the line conductors. In another form the body of lossy material may contain a groove so that it may be straddled across the rod-like conductor of the transmission line.
Patent GB-454956-A (GB)
Title: Improvements in or relating to modulated carrier wave television and like transmitters
IPC: H04N5/40
Filed: 1935-04-10
Abstract: 454,956. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and TRINGHAM, W. S. L., Puttenham, Guildford. April 10, 1935, No. 11162. [Class 40 (iii)] The effect of the bottom bend of the characteristic of the modulated stage of a transmitter, in which the synchronizing-signals reduce the carrier to zero is corrected by a shaping circuit D which causes the decrease in the carrier, due to a modulating-signal greater than a black picture signal, to be disproportionally large as compared to the decrease due to the application of signals below the value of the black picture signal. The picture signals and superimposed synchronizing pulses are applied to the grids of a bank of modulating-valves MV1 .. MV3, the anodes A1 .. A3 of which are connected to a modulating-resistance MR in series with a diode D and to the grid of a carrier stage to be modulated. The characteristic of the diode is such that disproportionately greater amplification of the synchronizing pulses causes the carrier to be reduced to zero by pulses of less amplitude than would otherwise be necessary.
Patent GB-855591-A (GB)
Title: Arrangement of rocket drive mechanisms on flying objects
IPC: B64D27/02
Filed: 1957-04-05
Abstract: 855,591. Self propelled missiles. BOLKOW, L. April 5, 1957 [April 6, 1956], No. 11198/57. Class 9(2). A propulsion device provided with a launching charge in addition to the propulsion charge has the two charges arranged in a single unit with the exhaust nozzle or nozzles 2 for the launching charge forward of and offset from the main propellent chamber 3. The device is incorporated within the casing of a flying body which may be launched from the ground as in Specification 855,592.
Patent GB-527783-A (GB)
Title: Improvements in or relating to coin-actuated mechanism
IPC: G07F5/06
Filed: 1939-04-15
Abstract: 527,783. Coin-freed apparatus. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., STICKLEY, R. E., and DIXON, S. M. April 15, 1939, No. 11512. [Class 27] Coin action, mechanical - connection and multiple-coin.-Individual coins of two different diameters effect a single or double actuation respectively of a counting, indication, or ticket issuing mechanism by the coins in their passage through a shoot 1, Fig. 1, in the direction of the arrow shown causing the displacement of an arm 3, provided with a cam member 8, to an extent dependent on the diameter of the coin. The arm 3 is pivoted at 2 and normally held in the position shown by a spring 6. It carries a member 7 projecting into the shoot 1 to be engaged by a coin in its passage. The smaller coin rocks the arm 3 just so far that a pin 9 on a spring controlled arm 10 rides on to the cam surface 8 to raise the arm 10 which through a pin 12 closes contacts 13, 14 to actuate a counting, indicating or ticket-issuing device. When the coin passes the arm 3 is returned and the contacts are opened. The larger diameter coin rocks the arm 3 so far that the pin 9 passes completely over the cam 8, again raises the arm 10 to cause a in its passage. During the return of the arm 3, the cam 8 again raises the arm 10 to cause a second actuation of the contacts. The coins may be moved along the shoot 1 by conveyer mechanism as described in Specification 513,785.
Patent GB-1173762-A (GB)
Title: Reinforced Resin Products and Method for their Manufacture
Inventor: BRADLEY IAN GEORGE
Filed: 1966-03-16
Abstract: 1,173,762. Casting insulators. PERMALI Ltd. 15 March, 1967 [16 March, 1966], No. 11517/66. Heading B5A. [Also in Divisions B8 and H2] Electrical insulators comprise an open reinforcing fibrous structure 2, e.g. of glass, cotton, asbestos or polyethylene yarn, which is wound on to a core 3 whereby the spacing between yarns wound in the same axial direction is greater than the thickness of the yarn, and which structure is placed on the core 3 within a mould 6 into which resin, e.g. epoxy, polyester, acrylic, silicone or nylon, is cast under vacuum, with or without pressure assistance, to penetrate the voids of the reinforcing structure and form e.g. an entrance bushing upon removal of the core 3. The structure may alternatively be wound on to an insert which remains incorporated in the moulded insulator and the helical pattern of the structure may-be varied from the interior to the exterior thereof, whereby the modulusof rigidity of the moulded article changes gradually from the resin interface to match with that of the insert. The yarn may be resin impregnated during the winding process. An insulating panel (12), Figs. 4 and 5 (not shown), with reinforcing ribs (10) may be formed by similarly winding resin impregnated glass fibre yarn on to cores whereby the ribs are self-supporting upon removal from the core before insertion into the mould (11) into which resin is then cast. In a foiled hollow bushing, an electrically conductive layer is incorporated along part of the length of the surface of the reinforcing structure by a spray of metal conductive metal paint, a woven gauze or perforated metal sheet, or a wound wire filamentary structure; several foils may be incorporated to form a condenser bushing. Other electrical structures which may be made include air blast circuit breakers, blast tubes, arc explosion pots,- and structural insulating members.
Patent GB-725206-A (GB)
Title: Optical glass
IPC: C03C3/155
Filed: 1953-04-27
Abstract: 725,206. Glass. ZEISS-STIFTUNG, C. [trading as JENAER GLASWERK SCHOTT & GEN.], April 27, 1953 [May 9, 1952], No. 11530/53. Class 56 An optical glass with a refractive index of at least 1.68 and free from thoria and beryllia contains (percentage parts by weight) B 2 O 3  36-50. ZrO 2  up to 11, La 2 O 3  26-44 and CaO 5-19 but not more CaO than 33 minus one half the La 2 O 3 . Part or all of the CaO over 5 per cent. may be replaced by St, Mg, Ba, Zn or Cd oxides not exceeding a combined total of 6 per cent., or by Li 2 O up to 2 per cent. Ta 2 O 5  and/or Nb 2 O 5  up to a total of 9 per cent. may be present and Al 2 O 3 , SiO 2 , In 2 O 3 , GeO 2  and WO, up to a total of 4 per cent. may also be added.
Patent GB-1216293-A (GB)
Title: Ridable lawn mowers and control systems therefor
IPC: A01D34/64
Filed: 1969-03-05
Abstract: 1,216,293. Mowing machine. INTERNATIONAL HARVESTER CO. 5 March, 1969 [20 March, 1968], No. 11638/69. Heading A1F. [Also in Division F2] A power-transmission control system adapted for use on a self propelled lawn mower comprises two drive belts, one 32 for driving the mower in a forward direction and one 33 in a reverse direction, an idler pulley 37 and a linkage to enable the idler pulley to selectively tension either one of the belts 32 and 33 and thus drive the mower in the desired direction in response to the operation of the foot pedals 44, 46. To drive the mower in a forward direction the pedal 44 is depressed. The connecting rod 49 is thus moved to the right and the bellcrank 54 rotated in a clockwise sense abouts its pivot 59. The spring 52 then transmits this movement to the rod 39 which is caused to pivot about 41. The J-shaped arm 38 is thus rotated in an anticlockwise sense about the pivot 41 and the idler pulley 37 is brought into contact with the belt 32, tensioning it and thus transmitting power to the compound pulley 31 and thence to the wheels of the mower. The spring 52 is arranged to yield when a force greater than about 60 lbs. is applied to it thus ensuring that the belt tension is kept constant. Operation of the linkage 49, 52 in this manner will cause motion in the linkage 53, 56, 51, however, due to the geometry of the bellcrank 56, i.e. the spring 53 is attached at a point further away from the pivot 67 than the rod 51, a lost motion connection is provided so that operation of one of the pedals has only a small effect on the other. The operation of pedal 46 for driving the mower in a reverse direction is completely analogous to the above. The bellcranks 54 and 56 are spring loaded, Fig. 5 (not shown), to maintain the linkages and the idler pulley in a central position in the absence of any pressure on the foot pedals. The bellcranks are further arranged with the point at which the springs are attached vertically above and forward of the fulcrum and with the point at which the connecting rods are attached to the left of the line through the fulcrum and the spring attachment point. This arrangement allows a constant force on a foot pedal to apply a constantly increasing moment to the bellcrank about its fulcrum while a constantly decreasing moment about the fulcrum of the bellcrank is applied to the spring.
Patent GB-931479-A (GB)
Title: Apparatus for drawing textile filaments
IPC: D02J1/22
Filed: 1962-03-27
Abstract: <PICT:0931479/IV(a)/1> Apparatus for drawing textile filaments comprises means (e.g. rolls 12, 13 one of which is positively driven) to supply textile filaments from a source at a predetermined speed, a cylindrical draw roll 15, preferably of metal, adapted to be driven (16, 17) so that the filaments normally being supplied to it are under considerable tension, said draw roll carrying a plurality of polished surface strips 19 and a plurality of roughened surface strips 18 on the yarn engaging peripheral area thereof, said strips being substantially parallel and extending axially of the said draw roll, the polished strips and the roughened strips following one another consecutively about the periphery of the said draw roll, the total surface area of the polished strips constituting 50-80%, preferably 60-75% and especially 65-75% of the total yarn engaging peripheral area of the said draw roll, and a separator roll 20 mounted adjacent to the said draw roll in spaced relationship therewith and positioned so that the axis of the separator roll is disposed at a slight angle with respect to the axis of the draw roll in order that the filaments normally progressing around the draw roll and the separator roll will describe generally a helix, the convolutions of which are spaced apart.  Desirably, the draw roll carries an equal number of polished strips and roughened strips, and the total number of polished strips and roughened strips is not less than three nor more than twelve in each case.  A non-rotative snubbing pin 21 may be disposed in the yarn path between the supply means and the draw roll, so as to localize the point of drawing of the filaments. The apparatus may be used for the drawing of filaments of conventional cross-section, or of multi-lobal filaments. Specified filamentary materials include polyethylene and polypropylene, polyurethanes, vinyl acetate/vinyl chloride copolymers, copolymers of vinylidene with a minor proportion of mono-olefinic compounds, homopolymers of acrylonitrile, copolymers of acrylonitrile with a minor proportion of at least one mono-olefinic compound and polymer blends containing combined acrylonitrile in a major proportion; vinyl chloride/acrylonitrile copolymers, linear polyesters of aromatic dicarboxylic acids and dihydric compounds, e.g. polyethylene terephthalate and the polyester derived from terephthalic acid and bis-1,4-(hydroxymethyl) cyclohexane, linear polycarbonamides, e.g. nylon 66, nylon 4, nylon 6, nylon 610, nylon 11 and fibre forming copolymers thereof.  Filaments show less tendency to cling to the surface of the roll than in the case of a polished roll, and less slippage than with a matte roll.
Patent GB-950099-A (GB)
Title: A heat exchanger
IPC: F28F1/12
Filed: 1961-03-30
Abstract: 950,099. Tubular heat exchange elements. ALUMINIUMUND METALLWARENFABRIK J. REIERT G.m.b.H. March 30, 1961 [Dec. 10, 1960], No. 11777/61. Heading F4S. A heat exchanger comprises a sinuous conduit 1 having joined thereto a plate 3 lying in the plane of the conduit 1 and being formed with a plurality of strips 5a, 5b, 6a, 6b, alternate strip portions being bent outwardly in opposite directions from the plane of the plate. The strips may be bent in an arcuate form and simultaneously stretched or they may be deformed so that each has a central portion of triangular cross-section which may be displaced relatively to the end of the strip (Figs. 3, 4, not shown). The plate 3 is formed with troughs 2 which receive the conduit 1. In a modification a separate plate is joined to each straight portion of the conduit.
Patent GB-825401-A (GB)
Title: Improvements in road sign supports
IPC: B62D7/16
Filed: 1957-04-10
Abstract: 825,401. Tripod stands. EASTERN GAS BOARD, and HILHAM, R. W. May 2, 1958 [April 10, 1957], No. 11803/57. Class 52(3) [Also in Group XVIII] A tripod stand for a road sign comprises a long leg 1 having screwthreaded locking means and two short bent legs 3 having slotted ends to receive said locking means. The road sign 7 is provided with flanges 8 or spring clips to engage the leg 1.
Patent GB-1517244-A (GB)
Title: Apparatus and method for the carbonisation of coal
IPC: C10B1/04
Filed: 1976-03-24
Abstract: 1517244 Vertical retorts J W HOLLAWAY 24 March 1976 11813/76 Heading F4B In a vertical retort 32 for carbonizing coal having heating walls 34 through which heat from heating flues 36 is transmitted to the retort interior, the heating walls 34 have a constantly decreasing thickness from their lower to their upper ends. Coal gas produced in the retort is passed through a condenser 66 to remove tar oils therefrom and thereafter recirculated into the bottom of the retort via a heat exchange zone 42 in which it passes in countercurrent heat exchange relationship with the discharging coke. Part of the coal gas may be bled via a connection 72 and fed, together with preheated air in a line 70, into the top of the heating flues wherein it is burned, said air being preheated in a tubular heat exchanger 48 by means of waste gases leaving the bottom of the heating flues 36. The heating walls 34 are formed from castable refractories which incorporate high alumina cement and heat resistant aggregates, the interior of said walls being lined with stainless steel cladding 40. The heat exchange zone 42, which is defined by an extension of said cladding 40 terminates in a trough 44. In an alternative embodiment (Figs. 1 and 2, not shown), the coal gas withdrawn from the retort is fed through conduits (30) into the lower portion of the heating flues (18) where it is burned. The cross-section of each heating flue increases as it extends upwardly.
Patent GB-251998-A (GB)
Title: Improvements in and relating to variable static transformers provided with a variable magnetic circuit
IPC: H01F29/10
Filed: 1926-05-05
Abstract: 251,998. Burnengo, G. May 5, 1925, [Convention date]. Regulating transformers.-In a transformer regulated by a movable magnetic shunt 13 disposed within a rectangular core 12, four sets of windings. are provided, each set comprising a primary and secondary winding having sections of a small number of turns on one side of the shunt and sections of a larger number of turns on the other side. The sections 4 - - 7 and 8 - - 11 may form separate primary and secondary windings, or they may be connected in series so that the ends 1, 2 form the primary terminals whilst the points 1, 3 form the secondary terminals,
Patent GB-107860-A (GB)
Title: Improvements in or relating to Eyeglass and Spectacle Lens Mountings.
Inventor: STEVENS FREDERICK ARTHUR
IPC: G02C1/02
Filed: 1916-08-22
Abstract: 107,860. Stevens, F. A. Aug. 22, 1916. Spectacles and eyeglasses. - Rimless lenses are connected to bridges and sides by a part 6 having a bearing piece abutting against the edge of the lens 1, a strap R on the bearing-piece resting against a face of the lens and carrying a post 10 passing through a perforation in the lens and surrounded by a sleeve 23 of cement, and a nut 17 screwed on to the end of the post 10. Cement-receiving cavities are formed in the faces of the strap 8 and nut 17.
Patent GB-1010472-A (GB)
Title: Improvements in or relating to liquid coating compositions
Inventor: DUNCAN BRYAN DAVID
IPC: C09D167/00
Filed: 1961-04-04
Abstract: A liquid preparation to form the basis of a liquid coating composition comprises a polyester derived from a dicarboxylic acid and a diol or triol which has been partly cured to a stage at which thixotropic properties are obtained but insufficiently to give rise to permanent gelling.  The specified curing agent is an organic polyisocyanate.  The partly cured polyester is mixed immediately prior to use with a curing agent.  The examples describe the preparation of partly cured polyesters from:-(1) a polyester derived from phthalic acid, adipic acid and a triol, a polyester derived from adipic acid, a diol and a triol, a polyester derived from adipic acid and a diol, an unsaturated fatty acid short oil alkyd and a toluene diisocyanate-trimethylol propane reaction product in the presence of a tertiary amine accelerator, ethyl glycyl acetate, butyl acetate, xylene and ethyl lactate and (2) a polyester, a polyisocyanate, a tertiary amine, ethyl lactate, ethyl glycol acetate, butyl acetate, toluene and xylene.  The partially cured polyesters being mixed immediately prior to use with a solution in ethyl glycol acetate of a toluene diisocyanate-trimethylol propane reaction product.  Specified tertiary amine accelerators being dimethylaniline and triethylamine.
Patent GB-160095-A (GB)
Title: Improved exercising apparatus
IPC: A63B21/055
Filed: 1920-04-30
Abstract: 160,095. Hughes, R. D. April 30, 1920. Exercising - apparatus. - Apparatus of the chest-expander type consists of two sticks a formed with handles band connected at their opposite ends by an elastic cord f. The handles b may be grasped by the hands and the cord f stretched so as to exercise the wrists specially.
Patent GB-255576-A (GB)
Title: Improvements in and relating to apparatus for illuminating shop windows
IPC: F27B7/00
Filed: 1925-05-09
Abstract: 255,576. Abel, A. May 9, 1925. Controlling consuming devices.-Universallymounted lamps are used in conjunction with an automatic change-over switch so that one or more of the lamps are switched on in alternation with the general lighting of the shop window. Articles 6, 7 in the window 2 are illuminated by lamps 4, 5, which are used alternately with one another and with the ordinary window lights 8, 8<1>, 8<11> by means of the switch device 9, 10, 11 which is driven by electric motor or clockwork. In two modifications for using low voltage lamps on high tension mains there is employed in the circuit a resistance or a transformer in the case of direct current or alternating current respectively. In a further modification the arrangement of the lamps in three windows is illustrated, controlled by a single automatic switch.